#include <stdio.h> 
int gets_day_of(int y,int m)
{
	int days[]={0,31,28,31,30,31,30,31,31,30,31,30,31};
    int day=days[m];
    if(is_leap_year(y)==1&&m==2)
    {
    	day+=1;
	}
	return day;
}

int is_leap_year(int y)
{
	if((y%4==0&&y%100!=0)||y%400==0)
	{
		return 1;
	}
	else return 0;
}


int main()
{
	int y=0;
	int m=0;
	scanf("%d,%d",&y,&m);
	int d=gets_day_of(y,m);
	printf("%d\n",d);
	
	return 0;
}
